Simple Sentence: "I am studying at a well-known university in the Philippines." (One independent clause).
Compound Sentence: "I am studying English to improve my communication skills, and it is very exciting!" (Two independent clauses joined by "and").
Complex Sentence: "Although I can comprehend English, I still want to speak fluently." (One dependent clause starting with "although" and one independent clause)
Interrogative Sentence: "How does it feel when you can speak English without doubting yourself?"